Telephone-support.



K. B. MILLER & G. G. ASHLEY.

TELEPHONE SUPPORT.

APPLICATION FILED 00T. 23, 1908. V 1,087,807. `Patented Feb. 17, 1914.

2 SHEETS-SHEET 1.

COLUMBIA LANOURAP CD.,WASH|NOTON, D. c.

K. B. MILLER & C. G. ASHLEY.

TELEPHONE SUPPORT.

APPLICATION IILED 00T. 23, 1908.

1,087.80?. Patetea Feb.17,1914.

2 SHEETS-SHEET Z.

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.KEMFSTER B. MLLER AND CHARLES G. ASHLEY, OF CHCAGQ, ILLINIS, .ASSIGNORS TO MGIVIEEN @a MILLER, OF CHICAGO, ILLINOIS.

TELEPOlE-SULJEGRT.

To all tzu/om t may concern Be it kno-wn that we, lniurs'rnn B. MILLER and @imanes G. Asi-iter, citizens ot the United States of America, and residents oi Chicago, county of Cook, and State oit lili'- nois, have invented a. new and useful lmprovenient in Telephone-Supports, of which the following1 is a specification.

@ur invention pertains to telephone supw ports, and pro-vides a support for a desk stand or other telephone equipment, suspendingthe equipment ilexibly so that it may be moved within certain limits; we provide tor maintaining the telephone set plumb by attaching our support at a point near the top oit the set, the set thus remaining plumb by its own weight. i

The device et our invention comprises an arm pivoted to a swiveled base block, a spring so disposed as to balance the device and its supported 'telephone at all times, and proper devices of articulation .tor the attachment ot the telephone set to the it'ree end of the arm.

ln the drawing, Figure l shows assembly oit the device, complete with telephone set attached; F 2 shows details et the lower end of the arm and of its mounting` elements; Fig. 3 shows details of the parts at the outer end ol" the arm; Fig. l shows an alternative arrangement of parts at the outer end of the arm; and Fig. 5 shows an alternative arrangement of the spring.

Like numerals reiter to like parts throughy out the several views.

The anchor post l is designed to attachl rigidly to a desk or wall or to any convenient object; this anchor post may be of any desired or convenient type, the sole requirement beingthat it comprise a vertical shaft l. and shoulder l to receive and sustain loosely and rotatably the base block 2. The movable arm of the device is preferably tubular, as shown, with lower and upper terminal castings, the lower casting 3 providing means i'or pivoting` the tubular arm 4 'to `the base block, and the upper casting 5 providing means for attaching' the telephone setto the outer end of the arm. An alternative desirable method ol manufacture is to form or cast the movable arm in one piece comprising' the equivalent of parts 3, 4 and SQ fr springl G is attached to base block l at and is attached at its other end adjustably to arm 4, the means of adjustment Specification of Letters Patent.

Application filed. (Butcher 2S, 12208.

lfatented Felt 'il/', illlllel. Serial No. 459,78.

suitable for use with a tubular arm l1 bein shown in detail in Fig. 2. shouldered to engage part 3; washer 8 rests upon the end o1 the inner tube 7 through washer S passes eye-bolt 9, secured adjustably by nut 10.

rilho design of the spring 7, for length and tension, and the distance of the eye 20 from the axis of the bolt 2 by which the arm is pivoted to the base block, shall be such as to balance the arm and its suspended telephone set in any of the positions which the arm is likely to assume in swing-ing upon the pivot bolt 2. The spring' should be substantially without tension when the arm is vertical, as shown in full lines in il 1, and will increase its tension as the arm swings downward; the rate ol. increase of tension will depend upon the relations existing' between the characteristics of the spring and its rate et' increase in length, and this should involve approximately a. function of the angle which the arm makes with its vertical position; this approximation need .not be extremely close, as it is desirable that the joint at the bolt 2 have considerable friction, and the friction there shall he sutlicieut to annul any dierence there may be at any time between the tendency of the telephone set to fall under the pull of gravitation, and the tendency to rise under the pull oi" the spring t3. ein exact balance at all times is impossible, since the weight of the telephone set upon the arm varies from time to time with the removal and replacement oit the receiver upon the switchhook.

In llig'. 5 a compression spring is used, engaging' the part 2 and the washer S, the washer S being adjustably connected to the part 2 by means oit the rod 2l and the nut 10. At the outer end, the arm terminates in y support pivotallj 0. b nner tube 7 is a yoke whose arms 5, o the swivel block l1, sustained by bolt 1l. Screw 1Q and its locking pin 13 complete the assembly of this part. Swivel yoke l1 is adapted to be clamped between two structural parts of the telephone set, as parts 15 and 16; these may be any two parts convenient, and the lower end ol yoke lll shall be of a shape adapted to the requirements of the parts between which it is to be clamped. ln Fig. 4t the yoke 14e is complete and is clamped by the bolt which secures the transmitter to the column of a portable desk stand; in Fig. 3, one of' the limbs of' the yoke is omitted7 and the remaining limb is clamped between the transmitter lug 15 and the transmitter case 16. 1t is seen that a wide variation iu the shape of the part le will be required by the variation in the types of telephone sets to be accommodated.

.ln lfig. 1, the conducting cord 1T connecting the telephone setto the line wires or to other apparatus is taken through the tubular portion ot the shaft, su'l'licient slack being lett between the desk stand and the upper part of the tubular arm to permit the telephone set to swing freely upon its bolt 11.

By positioning the axis ot the tubular arm l with respect to the axis of the pivotal bolt 2 so that the axis of the arm will lie above that of the bolt when the arm is in or approaches itsI horizontal or extreme position, the clearance between the arm and the desk surface 1S is increased as a minimum; by this means, an inconvenience of many existing telephone supports is avoided, since it is not necessary Vto remove objects upon the desk surface, suoli as large book 19 trom the path ot the arm to permit the telephone set to be brought into a desirable position tor use; positioning the telephone set below the arm, the minimum height ot the arm is further increasedT and by shaping the arm ina bend, as at 4, the minimum height ot the straight or main body portion ot the arm is still further increased.

laving thus described our invention.` what we claim as new and desire to secure by United States Let-ters Patent is:

1. 1n a telephone support a iiXed base block having a vertical post7 a swivel member fitted on said post for horizontal rotation and having a vertical bearing tace at its outer extremity, a hollow arm having an otfset bracket at one end pivoted on said bearing tace7 so that. the arm and bracket may rotate in vertical planes passing through the base block post, a compression spring within the arm with its lower end held at the lower end ot the arm, and a compression member lying within the spring and approximately in the axis ot the hollow arm, with its upper end bearing on the upper end of the spring7 and its lower end tied to the base block swivel element at a point between the postand the bearing tace pivot on the outer end thereof, together with means for supporting a telephone instrument rom the end ot the hollow arm, the construction and arrangement of the parts speciiied being such that when the arm is turned up into a vertical position, its aXis will lie within its pivot, that is to say, toward the post or fixed support. and the compression member will at all times exert a straight pull between the upper end ot the spring and the intermediate point on the swivel member.

2. ln a telephone support7 a tired base block, a radial arm having universal bearings thereon so that its outer end may be moved in a surface approximating that of a sphere, a compression spring in the arm, and a compression member lying within the spring and extending troni its upper end to a point fixed to the base block and lvinL- above the center or" vertical swine' of' the armj together with a freely movable link suspension device attached to the end et the arm and adapted for engagementwith the neck of a telephone set, whereby the same will be suspended freely trom the arm, and in all its movements will exert a direct and constant pull on the compression spring.

8. ln a telephone support. a lined base block having a vertical post, a swivel member fitted on said post for horizontal rotation.y a hollow arm hor ntally pivoted to said swivel member and having its main body woolly displaced laterally out ot line with said horizontal pivot, a spring within said arm connecting atone end with said arim and h aving its opposite end treely movable. with re. pe 'l neretoi, and a tension niemher tor said spring connected at one end with the tree end ot said spring and at the other w.itlpoint on said swivel member lined as i cts said horizontal pivot and laterally displaced theretrom, but in substantial alinenient with said arm when the said arm occupies its vertical position7 together with a telephone set carried at the cuter end ot' said arm.

et. A telephone support comprising a iiXed base block having a vertical post` a swivel member lined on said post for horizontal rotation thereabout, a hollow arm horizontally pivoted to said swivel member and having its main body when in normal position displaced laterally and to the rear ot the vertical line passing through said pivot, a compression spring within said arm connecting at one end with said arm and having its ogposite end freely movable with respect thereto, and a tension member connected at one end to the tree end ot said spring and at the other end to a point on said swivel member iiXed as respects said horizontal pivot and displaced laterally and to the rear et the same. whereby it is given a position in approximate alinement with the main body of said arm when in normal position, together with a telephone set carried at the outer end ot said arm.

1n a telephone support, a iixed base block having a vertical post.l a swivel member i'itted on said post for horizontal rotation thereabout, a supporting arm horizontally pivoted to said swivel member and having its main body displaced when in normal vertical posit-ion laterally and to the rear of the vertical line passing through said pivot but substantially parallel there- Cil to, a spring within said arm, connecting at one end with said arm and having its opposite end freely movable with respect thereto, and a tension member for said spring; connected at one end with the tree end ot said spring` and at the other to a point on. said swivel member fixed as respects said horizontal pivot but above and laterally and rearwardly displaced from said pivot, together with a telephone set carried at the outer end of said arm.

6. A telephone support comprising a fixed base block havingl a vertical post, a swivel member iitted on said post for horizontal rotation thereabout and having a horizontally arranged pivot on a line displaced laterally from said post, a hollow arm having a vertical normal position carried on said horizontal pivot and when in the said vertical normal position having its main body displaced laterally from the vertical line passing through said pivot, a spring within said arm connected at one end with the arm and. having its opposite end freely movable with respect thereto, and a tension member for said spring` connected at one end with tl e free end of said spring and at the other at a point on said swivel* member iixed as respects said pivot but laterally displaced therefrom, said displacements of the main body of said arm in normal position and of the said tired point ot connection of said tension member being; toward the vertical post from the horizontal pivot whereby the said post, the said point of connection of the said tension member to the swivel member, and the main body of the arm are brought substantially into alinement when the arm is in normal position, together with a telephone set supported at the outer end oit said arm.

A telephone support comprising` a iiXed base block having a vertical post, and a swivel member fitted on said post for horizontal rotation thereabout, a hollow supporting arm horizontally pivoted to said swivel member but when in normal vertical position having its main body displaced laterally of the vertical line passing,` through its pivot, a compression spring within the hollow of said arm connecting at one end with the said arm and having its opposite end freely .movable with respect thereto, and a tension member for said spring connected at one end with the free end of said springl and at the other with a point on said switch member liXed as respects said horizontal pivot but laterally displaced therefrom and in substantial alinement with the main body of said arm when the arm is in its normal position, said spring` being active to bias said arm lo its nor. ral vertical position throughout the movement of the arm from vertical to and from horizontal position, and said horizontal pivot of the arm having1 a friction on said hollow arm effective throughout said movements, together with a telephone set carried by said outer end of said arm.

S. ln a telephone support, a iixed base block having a vertical` post. a swivel member fitted on said post for horizontal rotation thereabout, an arm horizontally pivoted to said swivel member at, a point in front of .said lvertical post and having` its main body when upright wholly displaced laterally and to the rear of said horizontal pivot` and a spring biasing said arm to an upright position, said spring` connected at one end with said arm and at the other end to a point on said swivel member lixed as respects said horizontal pivot but laterally and rearwardly displaced therefrom, whereby said supporting,l arm is continually drawn rearwardly and toward said vertical post.

Signed by us at Chicago, county of Cook and State oit Illinois, in the presence of two witnesses.

KElv/PSTER B. MILLER. CHARLES (l. ASHLEY.

1Witnesses Darin S. HULrisii, Haluzm'r L. SMITH.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents. Washington, D. C.

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